Alesis 3630 Review: What do experts say?

  Alesis 3630

In this photo, an artist showcases the ALeisi 3630 compressor. It's found application in many concerts and perhaps you've listened to its tunes
Photo by QRX18 / CC BYx

Are you puzzled on whether or not to buy Alesis 3630 compressor? Most probably, your previously purchased compressors were a bit disappointing. For that reason your thirst for best sound tones is not yet quenched. I bet you should try out Alesis 3630 compressor to experience a remarkable turning point in your music profession. With the aid of my above Alesis 3630 review, your uncertainty will be automatically be converted to certainty. In this Alesis 3630 review, I have personally tried to elaborately dig deep into this compressor and hence give you all the available nitigrities.

  Alesis 3630 Review: Overview


  • One of the most popular pocket friendly compressors majorly used in live stages and studios worldwidely
  • Houses two independent units which can be used for different purposes. For instance, one of the unit side can be used as an electric guitar while the other as a vocal compressor.
  • Can be used as a final stage for mixing your tracks
  • Capable of taking signal from the side-chain return to process it against the original
  • Has the best vocal comprehension of vocals in live application
  • A times gets noisy together with a difficult to notice hissing sound to the signal
  • Being cheap, it lacks the sonic quality possessed by other expensive compressors

Ever since the above compressor was introduced, it has proved to become the most famous reliable processor ever to be made. Why do I say this? It’s simple, it offers two independent full-featured limiters in a single rack space while simultaneously giving a perfect sonic quality that is applicable in either studio recording, live sound performance or broadcast. In a nutshell, it also offers 4 custom control options- Decay, Ratio, Attack and Threshold which makes it apply compressions to the toughest signal. Again you have the alternative of picking between RMS and Peak compression mode together with soft and hard dynamic curves which is applicable for every subtle gain control to in-your-face punch.  Being an independent dual-channel compressor, Alesis 3630 is able to provide separate controls for two different signal sources.


To efficiently stifle unrequited ambient noise, this compressor comes with two entirely independent gates with rate and threshold control for the same. In addition to the above, it comes with the above advanced dynamic processing features:


1. Extensive metering

Every Alesis 3630 compressor comes with a 12-LED display that serves to show the amount of gain reduction. In addition to this, there is also a second 12 LED display that indicates the output/input levels. Finally, it also comes with a dual LED display that serves the purpose of indicating the status of the noise gate.

Pair it with this compressor


       2.   Stereo or dual mono operation

This suggests that the above compressor can act and serve as two entirely independent compressors or its both sections can be at a position of being strapped harmoniously to operate as a stereo which are:

  • “Hard knee” or “soft knee” responses
  • Peak or RMS response
  • Independent bypass switches for each channel


       3.  Side chain connections

This compressor allow you to insert EQs and other devices for the purposes of de-essing which adds tremble to darkened signal whenever there is excessive limiting. In addition you can now key one signal with another and do the ducking.



1. Threshold (-40 to + 20 dBu)

It dictates the level beyond which the signal will be limited or compressed. When you rotate the control in an anticlockwise manner,the threshold will be raised. This clamps signals at higher level and minimize the intensity of compression or limiting.


     2.   Ratio (  1:1 to infinity:1)

It dictates the compression slope determining how the output signal will behave in reference to input signal the moment the input signal will be above the threshold. The first numbering shows how many dB induced by input change will result to an output change of 1dB. The greater the ratio, the greater the compression.


     3.  Attack ( 0.1 ms to 200 ms)

This only works when the peak/ RMS switch in the Peak mode is on. The RMS mode automatically adjust the required attack time. This is based on the trait of the signal that is being processed.


In the peak mode, Attack control dictates how fast the limiter’s internal circuitry responds to change in the input level.


     4.  release ( 50 ms to 3 seconds)

This only works when the peak/RMS switch in the peak mode is on. The RSM mode automatically adjust the required release time. This is based on the trait of the signal that is being processed.


In the peak mode, the release control dictates the duration of time the limiter will take to return the gain unit the moment it has gone into limiting phase.


    5.  Output ( -20 to +20 dB)

The signal overall level is lowered by the process of reducing dynamics. For this reason, use this control to compensate that by adding output gain.

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